    nav {
        width: 100%;
        background: #fff;
        height: 131px;
    }
    
    .navTop {
        padding-top: 66px;
        margin-left: 12.5%;
        width: 224px;
        height: 33px;
    }
    
    .navTop span,
    .navTop h1 {
        line-height: 33px;
        font-family: PingFangSC-Regular;
        font-size: 24px;
        color: #5944C3;
        letter-spacing: 0;
    }
    
    .logo {
        background: url('../images/logo_white_color.png');
        background-size: cover;
        width: 76.8px;
        height: 25px;
    }
    
    main {
        background: url('../images/bg_sign.png');
        background-size: 1637px 597px;
        background-position: -197px 129px;
        width: 100%;
        height: 600px;
        padding-top: 60px;
    }
    
    .mainDiv {
        margin: 0 auto;
        width: 753px;
        background: #fff;
    }
    
    .main-title {
        text-align: center;
        color: #7F4A88;
        height: 39px;
        display: block;
        padding: 31px 0;
    }
    
    .main-title h2 {
        padding: 0px 20px 0 20px;
        color: #3E3E3E;
        font-size: 22px;
    }
    
    .main-content {
        width: 100%;
        border-bottom: 3px solid rgba(0, 0, 0, 0.1)
    }
    
    .regInput {
        height: 40px;
        width: 379px;
        margin: 0 auto 23px;
    }
    
    .regInput button {
        height: 100%;
        border: none;
    }
    
    .regInput input {
        height: 36px;
    }
    
    .regInput input:focus {
        border: 1px solid #5944C3;
    }
    
    .regInput span {
        margin-top: 20px;
        line-height: 30px;
        font-family: HiraginoSansGB-W3;
        font-size: 14px;
        color: #3E3E3E;
    }
    
    .submit {
        background: rgba(0, 0, 0, 0.35)
    }
    
    .captcha svg {
        width: 100%;
    }
    
    .toreg {
        width: 75px;
        height: 30px;
        border: none;
    }
    
    .toreg,
    .captcha,
    .tolog,
    .getVerfCode {
        font-family: "HiraginoSansGB-W3";
        font-size: 14px;
        color: #FFFFFF;
        cursor: pointer;
        background: #5944C3;
        border-radius: 3px;
    }
    
    .submit {
        cursor: pointer;
        font-family: "HiraginoSansGB-W3";
        font-size: 18px;
        color: #FFFFFF;
        border-radius: 3px;
    }
    
    .submit,
    .password,
    .cellPhoneNum {
        border: 1px solid #000000;
        border-color: rgba(0, 0, 0, .2);
        border-radius: 3px;
        width: 100%;
    }
    
    .captcha svg {
        width: 105px;
    }
    
    .imgCaptcha,
    .verfCode {
        border: 1px solid #000000;
        border-color: rgba(0, 0, 0, .2);
        border-radius: 3px;
        width: 262px;
    }
    
    .tolog {
        width: 20%;
    }
    
    .captcha,
    .getVerfCode {
        width: 105px;
    }
    
    footer {
        width: 100%;
        height: 298px;
        text-align: center;
    }
    
    .copyright {
        margin: 0 auto;
        padding-top: 79px
    }
    
    .copyright span {
        font-size: 13px;
        color: #3E3E3E;
        letter-spacing: 0;
    }
    
    .captcha {
        background: rgba(0, 0, 0, 0.35);
    }